Road sander



Feb. 15, 1949.

Filed April 12, 1948 v E. J. scHALL 2,461,779

ROAD' SANDER 3 Sheets-Sheet E lmer- J. Sena/l INVENTOR.

Feb. 15, 1 949. HA L 2,461,779

ROAD SANDER Filed April 12, 1948 '5 Shets-S-heet 2 W NIHHI' lao Q I Elmer J. Small IN VENTOR.

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Wynn 5m E. J. SCHALL 2,461,779

ROAD SANDER 3 Sheets-Sheet 3 Feb. 15, 1949.

Filed April 12, 1948 Q m v9 vm Q M mm H 9 J1 a I .1 V H I l I I I 1 mm wk Q Ha I 1 I :1, mm l I. l I I mm W w U vm mm vw um mm 9 mm m9 N w |.I\ m i Elmer J. Small INVENTOR.

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ofthe driving wheels t o prvent's lippag duit leading to th'e'smuifler.

Yet aIlOther objector the 'in'vention 1's tODIO- Y Patented Feb. 15, 1949 2,461,129 ROAD SANDER hl'lmeiyliisch'all, Germania; Pa. iipplic'ationfiipril 12, 194$,SeriaI-No. 25,572

This invention relates tda novel sanderadapted tobe'isecured to an 'autom'otivevehicle-or airplane for blowing sand on the road directly iif fiont The primary object of this invention isto' pro; 'vide' 'asander controlled'by'a switch on thedash of 'an automotive vehicle" associated with asignal on the dash for 'indicating'whether 'the'sander is onror offland for delivering siftedsand crashes directly in front of 'the driving wheels while air:

: d ryingf the "sand; or ashes.

.Another object "of this invention is 'to provide a sander :fo-r delivering air dried san d-to the road "directlyiin front of the driving wheels or anauto- :motive vehicle which sanderlis provided "with a r motor driven'conveyoriand "a "fan for drawing warm air from a bye-pass in the air exhaustlzconvide :a' sander having a removable sandreservoin 'These, 1 together with various ancillary objects and features of the invention which'will later become apparent as thexfollowing idescription proceeds, :are .attainediby: the' deviceg aprfrred embodiment of which :haszbeen illustrated by way of example:- only; :in the accompanying drawings, wherein:

:itl'igure :1 is. a r'sid'eu'elevational viewipartlyin 'iparspective cof the. "sander. ?'attached .to an automotive. vehicle;

:Figure V-2;:is-a 'bottomsplan View of; theisander asfshown in Figure 1;

FigureS isa longitudinal vertical-sectional view of the sanderiizhousingx and "associated parts;

Figure4 is an ei-idlevational view of the sander housing looking to the right on Figure 1;

Figure 5 is atran'sveise vertic'a'l' sectional View taken substantially onthe plane of section line 5-'5of Figure 3; s

Figure 6 is another transverse vertical sectional view taken substantially'on' the plane of section line 6-6 of Figure 3;

Figure 7-is another transverse verticalsectional wiew taken substantially onfithehplaneof section Figure llis a di-ag'r'ammati'c view of-an electrlcal r.circuit showing; the interconnection between -the enlarged -'cylinder;and 'a longitudinal tubular 'portion 26. The forward portion 22 and the bottom portion 2-6 areseparated from the backUportion 24' by means of a transverse plate- 28, enough tudinal plate' =3 0 welded-at? right angles to the plate Figure 8 in transverse vertical sectional view v taken substantially on the plane of the section line 8-8 of Figure 1;

Figure 9 is a longitudinal sectional view through the hose and nozzle attachment taken substantially on the plane of section line 99 of Figure 2;

Figure 10 is a transverse vertical sectional view through the fan shaft taken substantially on the plane of section line Ill-'10 of Figure 3; and

*arcuate plate 38 which 28, a'ndanothe'r 'transverse plate '32 weldedat right angles to the end ofthe p1ate 30, Aclosure plate-34 is provided'at' rear. end of the housing 20 which is spaced from the plate :32 forming therebetween 'a rear cylindrical portion 36. The forward portion 22 is separated *fromthe'bottom tubular portion 26 by. means of a T longitudinal is. providedwith a longitudinal slot-40.

Slidably and removably positioned in the; forward port on 22 is asubstantially cylindrical sand reservoir izwhos'e diameter is somewhat Iess. than that of the portion: 22, which reservoir carries; a

rsubstanti'ally C-shaped handle 44: at its forward 1 end 'anda longitudinal slot 46 in the side wall *thereof. When the slot's'40-and 46 are manua'Hy ali'gned, sand S'will fiowby -gravity?froma-the reservoir'to the-tubular portion 25 therebelo'w.

Secured to the "forward end" oi the tubular' porti'o'n 26"and to the bottom or the-plat n is a p'a'ir oi-bearings 48 and '50 respectiv 'ely. Rotatably iiournjaledthrough the tubularportion "26 and shaft" 54 extends longitudinallythrbu'gh the 'bottom of the rear portion 24, the rear end of which shaft is rotatably journaled to the plate 32 as at 54. Intermediate the plates 28 and 32, the conveyor shaft 54 carries a sheave 56.

Resiliently mounted to the inner walls at the top of the housing 20 in the rear portion 24 by means of appropriate bolts 58 carrying springs 60 is a motor 62 having a drive shaft 64 to the end of which is secured a sheave 66. Also secured 3 to the drive shalft'between the sheave B6 and the motor is a smaller sheave 68.

Longitudinally and rotatably disposed substantially through the center of the rear portion 24 is a fan shaft 10 which extends through an aperture in the plate 32 and is journaled at its forward end to the closure plate 34 as at 12. The rear end of the fan shaft is journaled in a collar I4 which is pivotally secured to the plate 28 by means of a screw 18. The fan shaft carries a sheave I8. An endless web 80 is entrained over the sheaves 66 and I8.

Resiliently'mounted to the inner walls of the housing 20 within the rear portion 28 by means of appropriate hooks 82 and springs 84 are a pair of shafts 86 and 88. The shaft 86 carries a larger sheave 90 and a smaller sheave 92 while the shaft 88 carries a larger sheave 94 and a smaller sheave 96. Entrained, over the sheaves 68 and 94 is an endless web 88, while another web I is entrained over the sheaves 90 and 96. Entrained over the sheaves 92 and 56 is another web I02. A fan I04 is secured to the fan shaft I0 within the rear portion 36. Thus it will be seen that the motor drivingly engages the fan and the spiral conveyor.

Thehousing 20 is further provided with an aperture I06 adjacent the sand reservoir which i communicative with a flexible conduit I08 which is connected to a heating chamber IIO which in turn is clamped around the air exhaust conduit I8 normally communicative with the muiiler I6. When the fan is turning, warm air is drawn from an aperture II I in the chamber IIO through the conduit I08 and thence through the sand in the reservoir.

Communicative with the upper portion of the rear portion 36 is an air-inlet conduit II3 threaded at its free end to receive an internally threaded screened cap I I2. Communicative with the lower portion of the rear portion 36 of the housing is a sand outlet conduit H4 in which is secured a Y-shaped couple II8 which is communicative with a pair of sand delivery conduits H8 and I20 which carry at their free ends a pair of downwardly and rearwardly inclined nozzles I22 and I24. The nozzles are provided with an upstanding apertured lug 12E which receives an appropriate'bolt or screw and nut I28 for se- ,1

I curing said lug to a bracket I30 removably secured" to the chassis adjacent and in front of the driving wheels I4.

As shown more particularly in Figure 4 a pair 1 of clamps I32 and I34 around the forward portion and rear portion of the sander housing 20 are provided for removably securing the housing to the chassis I2. The clamps are arcuate collar clampsifixedly secured by means of a bolt or screw at one end to the chassis as at I36 and removably secured to the chassis at the other end by means of a. hinge I38 having a longitudinal slot therein (not shown) through which extends a threaded finger I40 which in turn extends through an angulated lip I42 integral with the end of the arcuate clamp. The finger I40 receives a wing clamp I44. The sand reservoir 42 is additionally secured in the housing forward portion 22 by means of a conventional friction catch I46.

As shown in Figure 11, the battery B normally provided in the vehicle In is operatively connected to a switch SW which is preferably pro vided on the dash (not shown). The switch is operatively connected to a light L on the dash and the motor 62.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a, clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary. 7

It is to beunderstood, however, that even though there is herein shown and described'a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

Having described the claimed as new is:

1. In a motor vehicle having a chassis, rear wheels, and an air exhaust conduit; a sander comprising an elongated housing secured to said chassis having an upper compartment, a, rear compartment and a, lower compartment, said lower compartment having an upper wall including an elongated opening, a sand reservoir slidably and rotatably positioned in said upper comp-artment, said reservoir including a wall having an opening registrable with said first-mentioned opening, a screw conveyor rotatably journaled in said lower compartment, means in said rear cominvention, what is partment for driving said conveyor, nozzles se-v cured to the chassis in front of the rear wheels, sand delivering conduits interconnecting said nozzles with the rear of said lower compartment, and means for drawing warm air through said upper and lower compartments.

2. The combination of claim 1 wherein said first-mentioned means includes a motor resiliently mounted in said rear compartment.

3. The combination of claim 2 wherein said last-mentioned means includes a jacket about said exhaust conduit having an air-inlet port therein, an air inlet conduit interconnecting said jacket and said upper compartment, a fan mounted in said rear compartment and drivingly connected to said motor, and a restricted air inlet in the rear compartment adjacent said fan.

ELMER J. SCHALL.

REFERENCES CITED The following references are of record in the file of this patent:

Sudbury Jan. 2, 1940 

